Enter a Google News query and the number of days/months/years' worth of the most recent news items you want to eliminate.
This tool will construct a date-restricted search query in Google News and open it in a new window.
New political shenanigans disrupting your search? Back that ask up!
A celebrity feud mucking up your results? Back that ask up!
Just don't want to remember the last couple of days? BACK THAT ASK UP!
BTAU won't work perfectly because sometimes dynamic content breaks the date-based search. But it will eliminate a lot of recent news articles.